IBM Db2 Information Disclosure Vulnerability

Executive Summary

The vulnerability in IBM Db2 for Linux, UNIX, and Windows (including Db2 Connect Server) allows an authenticated user to disclose sensitive information from monitoring and event tables.

This issue is caused by sensitive information being inserted into externally accessible files or directories, classified under CWE-538.

It affects Db2 versions 11.5.0 through 11.5.9 and 12.1.0 through 12.1.4 across all platforms.

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Impact Analysis

This vulnerability can lead to unauthorized disclosure of sensitive information to authenticated users who should not have access to such data.

Since the vulnerability exposes sensitive data from monitoring and event tables, it could compromise confidentiality within your database environment.

The CVSS base score of 5.5 indicates a moderate severity impact, primarily affecting confidentiality but not integrity or availability.

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Detection Guidance

IBM has not disclosed detailed exploitation steps or specific detection commands for this vulnerability to prevent potential misuse.

The vulnerability involves sensitive information disclosure via monitoring and event tables to authenticated users, so detection would likely involve monitoring access to these tables and reviewing logs for unusual queries or access patterns.

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Mitigation Strategies

To mitigate this vulnerability, customers should promptly download and apply the appropriate interim fixes provided by IBM from IBM Fix Central for the affected Db2 versions.

IBM suggests using the DB2REMOTE alias for mitigation in supported environments, although no explicit workarounds are recommended.

Additionally, customers should monitor IBM’s security bulletins for updates and ensure that unsupported or end-of-life versions are not in use, as they are not affected.

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Compliance Impact

This vulnerability in IBM Db2 could lead to the disclosure of sensitive information to authenticated users via monitoring and event tables.

Such unauthorized disclosure of sensitive data may impact compliance with data protection regulations and standards like GDPR and HIPAA, which require strict controls to prevent unauthorized access to sensitive information.

Organizations using affected versions of IBM Db2 should apply the provided fixes promptly to mitigate the risk of sensitive data exposure and maintain compliance with these regulations.

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